Fault Estimation Observer Design for Descriptor Switched Systems With Actuator and Sensor Failures

This paper is concerned with the fault estimation (FE) problem for continuous-time descriptor switched systems with unknown external disturbances, actuator, and sensor faults. In this paper, the multiplicative actuator fault is decoupled into the normal term and the fault term, where the actuator fa...

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Bibliographic Details
Published inIEEE transactions on circuits and systems. I, Regular papers Vol. 66; no. 2; pp. 810 - 819
Main Authors Chen, Liheng, Zhao, Yuxin, Fu, Shasha, Liu, Ming, Qiu, Jianbin
Format Journal Article
LanguageEnglish
Published New York IEEE 01.02.2019
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
actuator and sensor faults
Actuators
Circuit faults
descriptor systems
Design parameters
Disturbances
Fault estimation
fault observer design
Faults
Iron
multiplicative faults
Observers
Sensors
Switched systems
Switches
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Summary:This paper is concerned with the fault estimation (FE) problem for continuous-time descriptor switched systems with unknown external disturbances, actuator, and sensor faults. In this paper, the multiplicative actuator fault is decoupled into the normal term and the fault term, where the actuator fault term and sensor faults can be extended into a new augmented vector. Then, a novel FE approach is developed for descriptor switched systems subject to the switching actions and state-inconsistence phenomena. By the parameter design, the proposed method can eliminate the effect of faults and disturbances, and achieve the accurate estimations of states and faults simultaneously. Finally, an example of circuit system is presented to show the effectiveness of the proposed method.
Bibliography:ObjectType-Article-1
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content type line 14
ISSN:1549-8328
1558-0806
DOI:10.1109/TCSI.2018.2871888